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Dominant Bordeaux

#b5287f
Notes

Dominant Bordeaux (#B5287F) is a true magenta with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (323°, 64%, 43%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#b5287f
RGB
rgb(181, 40, 127)
HSL
hsl(323, 64%, 43%)
HWB
hwb(323 16% 29%)
OKLCH
oklch(53.1% 0.193 348.1)
HSV
hsv(323, 78%, 71%)
LAB
lab(42.58% 61.99 -15.13)
LCH
lch(42.58% 63.81 346.28)
CMYK
cmyk(0%, 78%, 30%, 29%)

Etymology

Dominant
adjective

Latin dominārī, to rule — present-participle of dominate. As a color modifier, dominant implies a saturated-and-leading quality where the hue claims visual precedence over neighboring colors in the surrounding palette. Sits at the bold-and-imperative end of the grid, parallel to commanding and authoritative.

Bordeaux
noun

The French wine region — and the deep red of Cabernet Sauvignon-and-Merlot blends from the Médoc and Saint-Émilion. Bordeaux as a color refers specifically to a young Médoc in a glass: a deep, slightly red-purple-shifted dark red with the optical clarity of high-tannin wine. Deeper than burgundy, cooler than wine.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

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Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#b5287f
Original
#3f5581
Protanopia
#686d7c
Deuteranopia
#c22151
Tritanopia
#4c4c4c
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon White
5.87:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.57:1

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